TERMIUM Plus®

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MASSE THERMIQUE [4 records]

Record 1 2010-03-08

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Geophysics
  • Radiation Protection
CONT

One application of thermal ionization is thermal ionization mass spectrometry (TIMS). This method is widely used in radiometric dating, where the sample is ionized under vacuum. The ions being produced at the filament are focussed into an ion beam and then passed through a magnetic field to separate them by mass. The relative abundances of different isotopes can then be measured, yielding isotope ratios.

OBS

thermal ionization mass spectrometry (TIMS): term and abbreviation used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Géophysique
  • Radioprotection
OBS

spectrométrie de masse à thermoionisation : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 1

Record 2 2008-05-09

English

Subject field(s)
  • Construction Materials
  • Heating
  • Solar Energy
DEF

A material used to store the sun's heat or the night's coolness.

OBS

Water, concrete, and rock are common choices for thermal mass. In winter, thermal mass stores solar energy collected during the day and releases it during sunless periods (nights or cloudy days). In summer, thermal mass absorbs excess daytime heat and ventilation allows it to be discharged to the outdoors at night.

French

Domaine(s)
  • Matériaux de construction
  • Chauffage
  • Énergie solaire
DEF

Matériau ou matière pouvant emmagasiner l'énergie solaire ou la fraîcheur de la nuit.

OBS

L'eau, le béton et le roc sont des masses thermiques couramment utilisées. En hiver, une masse thermique typique emmagasine l'énergie solaire absorbée pendant le jour et la libère durant les périodes de temps couvert. L'été, cette masse thermique absorbe la chaleur excédentaire du jour et l'évacue ensuite à l'extérieur grâce à un système de ventilation.

Spanish

Save record 2

Record 3 2002-02-27

English

Subject field(s)
  • Measuring Instruments
  • Optics
  • Radiation Protection
OBS

Regulation cited: Nuclear Non-Proliferation Import and Export Control Regulations.

French

Domaine(s)
  • Appareils de mesure
  • Optique
  • Radioprotection
OBS

Règlement cité : Règlement sur le contrôle de l'importation et de l'exportation aux fins de la non-prolifération nucléaire.

Spanish

Save record 3

Record 4 1987-05-08

English

Subject field(s)
  • Construction Materials
  • Heating
DEF

The heat storage capacity of a structure provided by large quantities of heavy material.

CONT

Thermal mass for heat storage [is provided by] extra-thick concrete slab.

French

Domaine(s)
  • Matériaux de construction
  • Chauffage
CONT

On appelle "masse thermique" d'un élément de construction la somme des produits des masses (poids en langage ordinaire) de ses divers éléments par leur capacité calorifique.

Spanish

Save record 4

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